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MarketAux vs UUID Generator API

Same instrument, two spec sheets — measured, not claimed.

APIMarketAuxDEAD0UUID Generator APIHEALTHY91
Uptime · 30d
Uptime · 90d0.0%100%
Uptime · 30d0.0%100%
P50 · ms—737
P95 · ms—1570
AuthapiKeynone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — token requiredFree — limits not published
Rate limit100 requests/day on free planUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

MarketAux vs UUID Generator API: common questions

Which is more reliable, MarketAux or UUID Generator API?

On our scheduled checks, UUID Generator API leads on measured uptime — MarketAux at 0.0% versus UUID Generator API at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do MarketAux and UUID Generator API need an API key?

UUID Generator API needs no key, while MarketAux requires a free API key. If you want to start calling without signup, reach for UUID Generator API first.

Can I call MarketAux and UUID Generator API from the browser?

Neither sends browser-friendly CORS headers reliably, so call MarketAux and UUID Generator API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are MarketAux and UUID Generator API free for commercial use?

MarketAux has unclear commercial terms, and UUID Generator API has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.